Based on the Portuguese sources on the XVIth Century History of India and the anti-colonial struggles in Malabar led by the Zamorin and the House of Kunhali Marakkars. Their role in counteracting the Portuguese expansion deserves an indepth study and analysis. Although the present work is not a comprehensive one on the naval traditions of India, atleast it would help us promote the memory of a forgotten chapter in the History of Kerala and perpetuate the cause of national integration and communal harmony in this great country. The values cherished by the Kunhali Marakkars, to which they dedicated themselves and sacrificed their life, have a meaning for all time to come. This volume is an expression of that sentiment of Nationalism and memory of an epoch in the Asiatic History.